The M24128 is a 128-Kbit I2C-compatible EEPROM (electrically erasable programmable memory) organized as 16 K × 8 bits.

The M24128-BW can operate with a supply voltage from 2.5 V to 5.5 V, the M24128-BR with a supply voltage from 1.8 V to 5.5 V, and M24128-BF and M24128-DF with a supply voltage from 1.7 V to 5.5 V. M24128-BF and M24128-DF can also operate down to 1.6 V, under some restricting conditions. All devices operate with a clock frequency of 1 MHz (or less), over an ambient temperature range of -40 °C to +85 °C.

The M24128-D offers an additional page, named the identification page (64 bytes). It can be used to store sensitive application parameters, which can later be permanently locked in read-only mode.

• I²C interface
  • Compatible with the following I²C bus modes:
    • 1 MHz (Fast-mode Plus)
    • 400 kHz (Fast-mode)
    • 100 kHz (Standard-mode)
• Memory
  • 128-Kbit (16-Kbyte) of EEPROM
  • Page size: 64-byte
  • Additional 64-byte identification page (for M24128-D)
• Supply voltage
  • 
    Wide voltage range:
    • 1.7 V to 5.5 V from -40 °C to + 85 °C
    • 1.6 V to 5.5 V from 0 ° C to + 85 °C
    
    
• Temperature
  • Operating temperature range: -40 °C to +85 °C
• Fast write cycle time
  • Byte and page write within 5 ms
• Performance
  • Enhanced ESD/latch-up protection
  • More than 4 million write cycles
  • More than 200-year data retention
• Advanced features
  • Hardware write protection of the whole
    memory array
  • Random and sequential read modes
• Packages
  • SO8N, TSSOP8, UFDFPN8, WLCSP8, and UFDFPN5 (ECOPACK2)
  • Unsawn wafer (each die is tested)